The Kansas City Chiefs will be without wide receiver Steve Breaston for Monday night's game against the Pittsburgh Steelers. Breaston was signed to a five-year, $22 million contract on July 29 and caught 61 passes for 785 yards and two touchdowns last season. Through eight games in 2012, Breaston has just six receptions for 61 yards while playing in over 35 percent of the team's offensive snaps and is a healthy scratch as he was not on the team's injury report. For the Steelers, wide receiver Antonio Brown, who has a team-high 42 receptions this season, is out with an ankle injury. Running back Rashard Mendenhall is also inactive after being listed as "doubtful" on the injury report with an Achilles injury, which means Isaac Redman and Jonathan Dwyer will be the top backs for the Steelers on Monday night. Kansas City : QB Brady Quinn, RB Cyrus Gray, WR Steve Breaston, G Bryan Mattison, NT Jerrell Powe, LB Bryan Kehl, S Tysyn Hartman